7OTB
Ruthenium polypridyl complex bound to a unimolecular chair-form G-quadruplex
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | 277 | Annealing: 200 uM L-[Ru(phen)2(Aqphen)]2+, 200 uM GGGTTAGGGTTAGGGTTTGGG, and 10 mM KCl. Crystallisation: 100 uM L-[Ru(phen)2(Aqphen)]2+, 100 uM GGGTTAGGGTTAGGGTTTGGG, 5 mM KCl, 40 mM NaCl, 20 mM Na Cacodylate pH 7.0, 20% v/v MPD, 6 mM spermine hydrochloride, and 10 mM BaCl2. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.2 | 38 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 29.68 | α = 90 |
b = 29.68 | β = 90 |
c = 113.98 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS EIGER2 XE 16M | 2021-05-17 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | 0.5604, 1.7712 | Diamond | I03 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | |||||
1 | 1.6 | 21.29 | 99.7 | 0.1006 | 0.1039 | 0.02564 | 0.999 | 14.35 | 17 | 140815 | 22.39 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.6 | 1.657 | 98.15 | 0.5729 | 0.5988 | 0.171 | 0.932 | 2.39 | 11.8 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | SAD | THROUGHOUT | 1.6 | 21.29 | 1.35 | 14787 | 1471 | 99.82 | 0.1663 | 0.1648 | 0.181 | 30.1717 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 443 |
Solvent Atoms | 113 |
Heterogen Atoms | 94 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
PDB_EXTRACT | data extraction |
xia2 | data reduction |
XDS | data reduction |
xia2 | data scaling |
XSCALE | data scaling |
SHELXDE | phasing |
Coot | model building |